> For the complete documentation index, see [llms.txt](https://docs.wisej.com/api/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.wisej.com/api/wisej.web/general/control/wisej.web.helpeventhandler.md).

# HelpEventHandler

Namespace: **Wisej.Web**

Assembly: **Wisej.Framework** (4.0.0.0)

Represents the method that will handle the [HelpRequested](/api/wisej.web/general/control.md#helprequested) event of a [Control](/api/wisej.web/general/control.md).

{% tabs %}
{% tab title="C#" %}

```csharp
public delegate void HelpEventHandler(Object sender, HelpEventArgs hlpevent)
```

{% endtab %}

{% tab title="VB.NET" %}

```visual-basic
Public Delegate Sub HelpEventHandler(ByVal sender As [Object], ByVal hlpevent As HelpEventArgs)
```

{% endtab %}
{% endtabs %}

## Parameters

| Name         | Type                                                                       | Description                                                                                                       |
| ------------ | -------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------- |
| **sender**   | [Object](https://docs.microsoft.com/dotnet/api/system.object)              | The source of the event.                                                                                          |
| **hlpevent** | [HelpEventArgs](/api/wisej.web/general/control/wisej.web.helpeventargs.md) | A [HelpEventArgs](/api/wisej.web/general/control/wisej.web.helpeventargs.md) object that contains the event data. |

## Fired By

| Name                                                                     | Description                                                     |
| ------------------------------------------------------------------------ | --------------------------------------------------------------- |
| [Control.HelpRequested](/api/wisej.web/general/control.md#helprequested) | Fired when the user requests help for a control by pressing F1. |


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